Concrete block.



PATENTE!) JUNE' 2s, 1908.

J. W. WHITE. -GQNGRETE BLOCK. PPLI'OMION FILED 1120.19.1907.

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Specification of Lettere Patent...

vPatented Junev 23,1908.

Application filed December 19, 1907; Serial No.4( )7,219.

To all whom it may concern: j

Be it known that I, JOHN W. WHITE, a citizen of United States, residingat Spokane, in the county of Spokane and State of Washington, haveinvented certain new and useful Improvements in Concrete Blocks, ofwhich the following is a specification.

This inventionrelates to concrete blocks, and more particularly to themeans eniployed for strengthening the webs between the usual air spaces.

Other objects and advantages will be hereinafter referred .to andparticularly pointed out in the claims In the drawing-Figure 1 is ahorizontal section of my improved block. Fig. 2 is a transverse sectionon the line 2-2 of Fig. 1. Fig. 3 is a horizontal section of a slightlymodified form of the invention. Fig. 4 .isa transverse section on theline 4-4, -Fig. 3..

The numeral 1, indicates a blockfprovided at one end with areducedlextension 2, to overlap la similarv extension on an' adjacentblock. 'The body of the block is formed with a centrally disposedflue 3,and in the four walls and adjacent this flue are minor iiues' or spaces4. The flues are formed for the purpose of allowing the usual air sp acein wall construction. of. the flue 4, are webs 5, to strengthen thestructure. The flues 4, form what I j shall hereinafter term "innerwalls 6, and outer walls 7, said walls being connected by the Webs 5. v

Reinforcing .elements 8,' formed of wire, are embedded approximatelynear the top and bottom of the inner wall 6, and extend completelyvaround the same. The reinforcing elements have twisted corners 8", andextend diagonally outwardly, and. are enibedded in the webs 5. Thetwists ofthe wire are loose toperinit the cement to pass between them toassist in strengthening the structure, as clearly shown in Fig. 1. Insubstantially the same horizontal plane as the reinforcing elements 8,and embedded in the outer wall 7, are reinforcing elements 9, havingtheirends twisted to form eyes 10, through which Vthe concrete may pass.The reinforcing' elements 9, project laterally, and are embedded in theextension 2, where the ends are twisted to form eyes 11. Extendingbetween the ends 12, of the portions 13, of the reinforcing elements 9,-are connecting reinforcing elements 14. These elements 14,

to the face of the extension 2, is a lobp v16,

Between the adjacent ends pass through a web 14a, formed in theextension adjacent flues 15. Connected to the upper end piece 12, andextending outward y designed to overlap'the upper face of an adjacentblocl when the blocks are assembled` in wall construction.

In 'Figs 3 and 4, I have shown a slightly different form of theinvention, the same consisting of a block 17',- formed with parallelyflues 18, with an intermediate web 19. y Reinforcing elements 20, areembedded inthe block near the upper and lowerfaces of -the saine, andhave their ends twisted to form. eyes '21. Connected to one end of therei'n forcing element 20, is a wire 22which extends to the outside ofthe end of the block and performs the same function as the wire Areinforcing element 19", isernbedded` in the web 19, and extends to theoutside to secure slats for lathing purposes.

A block such as described .may be made comparatively light, andpossesses substan- V tial strength by reason of the particular locationand vconstruction of the reinforcing element. The twistingof the.Wiresperrnits Q5." the vpassage of the concrete and insures of the sameeing rigidly embedded in the mass and effectually strengthens theconstruction.

1., A concrete block formed with fines and diagonal webs between theiiues to connectthe corners of the walls forming the iiues, re- Yinforcing elements embedded in the block, said reinforcing elementshaving,diagonallyy arranged twisted portions and formed with eyes thetwisted portions extending into and are embeddedin the diagonal webs andthe -eyes extending beyond the webs and ein? bedded in the block., andreinforcing elements embedded in the block` outside the plane of thetwisted reinforcing elements.

2. A concrete block formed with flues in the body portion thereof,diagonal webs be` tween the' flues to connect the corners of the wallsforming vthe fines, the block having a reduced extension formed withiiues, a reinforcing element embedded in the body portion and having.twisted portions to form eyes the twisted portions extending into andare embedded in .the diagonal webs and the eyes extending beyond, thewebs and embedded in the block, and other reinforcing elementseinbedded'in the body portion outm 'side the plane of the firstmentioned reiniio portion formed with fines, and a reduced extensionformed 'with iiues, reinforcing ele` inents formed of Wire, and providedwith a projecting portion, the body of said reinforcring element beingembedded in the body of fthe block" and the projecting portion beingiembedded in the extension oi' the block, the reinforcing element havingtwistedA portions form eyes through which the concrete passes.,

\4A concrete block comprising a body portion formed 'with iiues,reinforcing elements embedded in the body portion outside the piante ofthe iiues and formed with eyes through which the concrete passes.

5. A Concrete block comprising a body portion formed with fines, and ereduced extension fornied with flues, reinforcing elements embedded inthe' body portion and the extension, and a loop extending from thereinforcing eienient to the outside of the extension near the topthereof.

In testimony whereof I affix niy signature in presence of twoWitnesses.-

JOHN W. WHITE.

Witnesses: n

JOHN W. RUMMAGE, ROBERT A. SIMS.

